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货号: YP-rAb-17852
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产品介绍

反应种属
Human,Mouse,Rat,Fish
应用范围
WB,IHC,IF,IP,ELISA
抗体类型
单克隆抗体
基因名称(Gene Name)
EIF2S1
蛋白名称
Eukaryotic translation initiation factor 2 subunit 1
分子量(DA)
36kD
免疫原
特异性
Endogenous
组成
PBS, 50% glycerol, 0.05% Proclin 300, 0.05%BSA
来源
Monoclonal, Rabbit,IgG
稀释比例
IHC 1:1000-1:5000; WB 1:2000-1:10000; IF 1:200-1:1000; ELISA 1:5000-1:20000; IP 1:50-1:200; Note: For IHC, we suggest antigen retrieval with TE buffer pH 9.0
纯化工艺
Protein A
浓度
0.5 mg/ml
储存
-15°C to -25°C/1 year(Do not lower than -25°C)
其他名称
eIF2α;Eukaryotic translation initiation factor 2 subunit 1;EIF2S1 ; EIF2A ; Eukaryotic translation initiation factor 2 subunit 1 ; Eukaryotic translation initiation factor 2 subunit alpha ; eIF-2-alpha ; eIF-2A ; eIF-2alpha;EIF2S1
背景
The translation initiation factor EIF2 catalyzes the first regulated step of protein synthesis initiation, promoting the binding of the initiator tRNA to 40S ribosomal subunits. Binding occurs as a ternary complex of methionyl-tRNA, EIF2, and GTP. EIF2 is composed of 3 nonidentical subunits, the 36-kD EIF2-alpha subunit (EIF2S1), the 38-kD EIF2-beta subunit (EIF2S2; MIM 603908), and the 52-kD EIF2-gamma subunit (EIF2S3; MIM 300161). The rate of formation of the ternary complex is modulated by the phosphorylation state of EIF2-alpha (Ernst et al., 1987 [PubMed 2948954]).[supplied by OMIM, Feb 2010],
功能
Functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA. This complex binds to a 40S ribosomal subunit, followed by mRNA binding to form a 43S preinitiation complex. Junction of the 60S ribosomal subunit to form the 80S initiation complex is preceded by hydrolysis of the GTP bound to eIF-2 and release of an eIF-2-GDP binary complex. In order for eIF-2 to recycle and catalyze another round of initiation, the GDP bound to eIF-2 must exchange with GTP by way of a reaction catalyzed by eIF-2B.,PTM:Substrate for at least 4 kinases: EIF2AK3/PERK, GCN2, HRI and PKR. Phosphorylation stabilizes the eIF-2/GDP/eIF-2B complex and prevents GDP/GTP exchange reaction, thus impairing the recycling of eIF-2 between successive rounds of initiation and leading to global inhibition of translation. In case of infection by vaccinia virus or rotavirus A, eIF2S1 phosphorylation state is modulated.,similarity:Belongs to the eIF-2-alpha family.,similarity:Contains 1 S1 motif domain.,subunit:Heterotrimer composed of an alpha, a beta and a gamma chain. Component of an EIF2 complex at least composed of CUGBP1, CALR, CALR3, EIF2S1, EIF2S2, HSP90B1 and HSPA5.,

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优品生物的抗体,可以回收利用几次?

首先,一般抗体不推荐客户回收利用,抗体使用之后缓冲体系已经发生改变,不同客户在回收抗体的保存条件上也会有差异,所以抗体回收使用效果无法保证。另外,优品生物也做过一批抗体回收验证测试,测试结果显示不同抗体可回收次数不同,一般效价越高的抗体,可重复使用的次数越多,客户可根据实验情况来确定。
注:我们将孵育完毕后剩余的抗体回收到离心管中置于4℃保存,效价高的抗体可至少保存1周,至少重复利用3次。

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优品生物作为国产抗体品牌的优势?

优品生物是国产品牌,通过聚焦抗体与酶核心技术,致力于打破国际技术的垄断,我们拥有包括兔多克隆抗体、小鼠单克隆抗体、兔单克隆抗体的生产研发平台,同时也有包括WB,IP在内的检测平台,我们对每一支自产的抗体进行了严格的检测。当然,我们部分直销地区也可以帮客户代购进口品牌的产品。同时也有抗体定制服务。优品生物l抗体优势:1,严自检,保质量;2产品多,指标全;3,价格低,货期短。

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优品生物抗体成分?

优品生物抗体成分在平时工作当中,常会有客户咨询我们的抗体用的什么buffer进行保存,一般来说,我们的buffer的成分是:PBS含0.03%的proclin300、0.05%牛血清白蛋白、50%甘油;也有一些是PBS含0.03%的proclin300,50%甘油。防腐剂 Proclin 300活性成分主要是2-甲基-4-异噻唑啉-3-酮(MCI)和5-氯-2-甲基-4-异噻唑啉-3-酮(CMCI)。ProClin生物灭活剂能够迅速穿透细胞膜,抑制对细胞呼吸至关重要的特定酶,因此一接触微生物有机体就会立即抑制细胞活性。ProClin的多个特定毒性位点可以防止微生物产生高水平的耐药性。

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